Silent Runner 9" + Sandy Track + Cage Attachment - Pet Exercise Wheel Package Set - for Robo Hamsters, Syrian Hamsters, Teddy Bear Hamsters, Dwarf Hamsters, Gerbils, Mice and Other Small Pets

*****PLEASE ENSURE CAGE / CAGE DOORS ARE 10 INCHES TALL OR MORE!Exotic Nutrition's Silent Runner 9" Small Wheelis the most innovative wheel on the market for its safety features and whisper-silent spin.MEASURES: 10" tall on stand, 9" wheel diameter, 3" wide track,2.75" diameter openings, 4" wide on stand.FEATURES:✔ SAFE - The axle-free design eliminates a dangerous center bar, reducing the risk of fur/tail entanglement, pet wrap-a-round, curvature of the spine, and other injuries.✔ SILENT - Innovative dual ball-bearings create a whisper-silent spin.✔ SANDY TRACK - Provides a soft, abrasive running surface to file nails. ✔ NON-SLIP - Running tracks are textured, for excellent grip.✔ SANITARY - Wheel completely disassembles for deep cleaning, no nooks for feces to hide in.✔ SECURE - Closed off design with front plate for privacy, safety, and containment. With natural bean-shaped openings and a pet-preferred solid black rear wall.✔ HIGH QUALITY - Wheel is made of high-quality plastic.✔ JOINT PROTECTION - The stand allows for give, protecting your pet from joint pain caused by running on a hard, fixed surface.✔ IDEAL FOR - Hamsters(Teddy Bear, smaller Syrians, larger Dwarfs / Robos, etc.), Gerbils, Mice, and other similar small animals (not suggested for chewers).What is dual ball-bearing technology? Two stainless steel ball-bearings within the back plate ensure the wheel glides smooth and silent. The bearings SPIN around the bolt instead of sliding and creating noise.